From the given options select the one that rightly explains the given expression:

To talk one’s head off

To talk excessively

The idiom "to talk one's head off" most clearly explains to talk excessively. The idiom comes from the literal meaning of talking so much that one's head might fall off. In the same way, when someone is said to be "talking their head off," they are talking a lot, often without stopping.

The other options are not as accurate. To scream and shout means to talk loudly and angrily. To whisper means to talk quietly. To talk to one's own self means to talk to oneself, which is not the same as talking excessively.